At 19:02 04/13/99 -0400, Jason Wolfson wrote:
>OK, now I'm starting to spin my wheels,
>
>What would be the best way to calculate
>an arcTangent with a PIC?
>
>I have 2 values, x and y, values are 0-100,
>I need to find an angle by taking the
>arcTan of (y/x).

like dave said, a table is probably the best. look at scott dattalo's sine
function for a 2-dim example. but you either have 3 dimensions (like
(x,y)->angle) or do a division first, and then you'd possibly have to cope
with a big range of possible values. depends on range/precision/resolution
requirements.

ge